Move TTS extension API to chrome/browser/speech/

chrome/browser/extensions/extension_tts_api_chromeos.h

Index: chrome/browser/extensions/extension_tts_api_chromeos.h
diff --git a/chrome/browser/extensions/extension_tts_api_chromeos.h b/chrome/browser/extensions/extension_tts_api_chromeos.h
deleted file mode 100644
index fe2fc8ac5c3012f634d8c9a9aca838f5395001ea..0000000000000000000000000000000000000000
--- a/chrome/browser/extensions/extension_tts_api_chromeos.h
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_TTS_API_CHROMEOS_H_
-#define CHROME_BROWSER_EXTENSIONS_EXTENSION_TTS_API_CHROMEOS_H_
-#pragma once
-
-// This is called by AudioMixerAlsa to signal that it's safe to begin
-// using TTS on ChromeOS - this must happen after AudioMixerAlsa has
-// finished its initialization. NotificationService would be cleaner,
-// but it's not available at the point when this code needs to be called.
-void EnableChromeOsTts();
-
-#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_TTS_API_CHROMEOS_H_